Hitachi AA 2000 User's Manual
Contents
1. 1 7 1 4 182 627 8 200 250 182 429 4 6 8 150 200 182 307 0 029 8 1 4 6 100 150 E 182 209 0 737 12 14 300 350 182 629 6 8 150 200 182 309 14 16 350 400 182 729 8 10 200 250 182 409 0 031 8 10 200 250 182 431 6 100 150 182 211 0 787 12 14 300 350 2 2 182 631 6 8 150 200 182 311 0 200 250 182 411 0 035 8 10 200 250 182 435 2 250 300 182 511 0 889 10 12 250 300 182 535 4 300 350 182 611 12 14 300 350 182 635 100 150 182 213 0 039 8 10 200 250 0 182 439 150 200 182 313 0 991 10 12 250 300 182 539 200 250 182 413 12 14 300 350 182 639 250 300 182 513 300 350 182 613 0 041 8 10 200 250 182 441 1 041 10 12 250 300 182 541 6 100 150 182 215 12 14 300 350 182 641 8 150 200 182 315 0 200 250 182 415 0 043 8 10 200 250 E 182 443 2 4 6 8 0 2 4 250 300 182 515 1 092 10 12 250 300 182 543 300 350 182 615 12 14 300 350 182 643 a 182 217 Fluid output at 600 psi 41 bar o Labs Requires air cap 218 336 250 300 182 517 Fluid output Q at other pressures P can be calculated by this 300 350 182 617 formula Q 0 041 QT V P 150 200 182 319 Where QT Fluid output fl oz min from the above table for 200 250 182 419 the selected orifice size Be SU en NOTE Other tips are2. 1 Pump Ground the pump by connecting a ground wire and clamp between the fluid supply and a true earth ground as instructed in your separate pump instruction manual 2 Air compressors and hydraulic power sup plies Ground them according to the manufacturer recommendations 6 307 586 3 Air fluid and hydraulic hoses connected to the pump Use only grounded hoses with a maxi mum of 500 feet 150 m combined hose length to ensure grounding continuity Check the electrical resistance of your air and fluid hoses at least once a week If the resistance exceeds the recom mended limits replace the hose immediately Spray gun Ground the gun by connecting it to a properly grounded fluid hose and pump Fluid supply container Ground it according to local code Object being sprayed Ground it according to local code All solvent pails used when flushing Ground them according to local code Use only metal pails which are conductive Do not place the pail ona non conductive surface such as paper or card board which interrupts the grounding continuity To maintain grounding continuity when flush ing or relieving pressure Always hold a metal part of the gun firmly to the side of a grounded metal pail then trigger the gun Operation Safety 6 7 A WARNING INJECTION HAZARD Remember this is not an air spray gun For your safety be sure to read and follow the Warnings on pages 2 and 3 6a and throughout
3. Part No 178 422 218 042 178 767 178 765 105 452 217 487 178 798 168 110 105 456 179 960 218 566 180 547 Description Qty GASKET fluid Delrin 1 sent unassembled 3 PACKING KIT needle Delrin amp UHMW polyethylene Optional UHMW Polyethylene Kit available see page 20 NUT needle air NUT packing air U CUP PTFE VALVE air TOOL packing O RING nitrile rubber Included with item 7 1 RETAINER clip Included with item 7 WARNING CARD not shown GUARD trigger CONNECTOR fluid A A A la la ca dh o These parts are included in Repair Kit 217 525 which must be purchased separately NOTE Repair Kit 238 224 is also available It includes the same parts as Repair Kit 217 525 except it includes a fine finish diffuser seat part no 223 139 instead of the standard diffuser seat part no 217 300 A Replacement Danger and Warning labels tags and cards are available at no cost 307 586 17 Spray Tip and Air Cap Selection Charts STANDARD SPRAY TIPS Light to Light to Orifice Inches mm Medium Heavy Orifice Inches mm Medium Heavy Size Fan Width Viscosity Viscosity Size Fan Width Viscosity Viscosity inches at 12 fl oz min fl oz min inches at 12 fl oz min fl oz min mm 300 mm liters min mm 300 mm liters min liters min 2 4 50 100 4 182 107 0 027 8 10 200 250 58 5 50 0 182 427 6 100 150 0 182 207 0 689 12 14 300 350
4. ene PTFE Delrin Delrin is a registered trademark of the DuPont Company 307 586 21 Notes 22 307 586 Notes 307 586 23 The Graco Warranty and Disclaimers WARRANTY Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use As purchaser s sole remedy for breach of this warranty Graco will for a period of twelve months from the date of sale repair or replace any part of the equipment proven defective This warranty applies only when the equipment is installed operated and maintained in accordance with Graco s written recommendations This warranty does not cover and Graco shall not be liable for any malfunction damage or wear caused by faulty installation misapplication abrasion corrosion inadequate or improper maintenance negligence accident tampering or substitution of non Graco component parts Nor shall Graco be liable for malfunction damage or wear caused by the incompatibility with Graco equipment of structures accessories equipment or materials not supplied by Graco or the improper design manufacture installation operation or maintenance of structures accessories equipment or materials not supplied by Graco This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for ver
5. Air in paint supply line Solution Adjust fluid regulator or fill fluid supply tank Check tighten siphon hose connec tions bleed air from paint line Irregular pattern Fluid build up or spray tip partially plugged On defective side of pattern air horn holes are partially or totally plugged Clean spray tip See page 10 Clean air horn holes with solvent and soft brush See page 10 Pattern pushed to one side same side of air cap gets dirty 12 307 586 Air horn holes partially or totally plugged Clean air horn holes with solvent and soft brush See page 10 Notes 307 586 13 Service A WARNING INJECTION HAZARD by To reduce the risk of a fluid injection injury follow the Pressure Relief Proce dure on page 7 before checking or servicing any of the system equipment and when ever you are instructed to relieve pressure NOTE e Follow the Service Notes in Fig 8 when reassem bling the gun Also refer to the parts drawing on page 16 for parts not shown in Fig 8 e Gun Repair Kit 224 949 is available See page 17 The reference numbers with asterisks in the service procedures are included with the kit Air Valve Service 1 Relieve the pressure as instructed on page 7 2 Remove the trigger 3 and valve cap 11 See the parts drawing and Fig 8 3 Unscrew the needle nut 49 while holding the flats of the air valve 52 stem with a long nose pliers 4 CAUTION
6. To avoid leakage be careful not to scratch the air valve stem 4 Remove the spring 10 and air valve 52 5 If there is air leakage at the air valve 52 unscrew the packing nut 50 and carefully remove the u cup packing 51 Replace the packing if it is worn or damaged When re installing be sure the u cup faces inward 6 If leakage occurs internally or the front of the gun leaks air when it is not triggered clean and inspect the air valve and the spring for wear or damage Replace as needed 7 Forthe best air valve life lubricate the external air valve shaft point A with light oil after each day s use 14 307 586 Fluid Packing Replacement Follow the procedure below to remove the fluid pack ings for cleaning or replacement and to inspect the needle shaft when there is leakage from the back of the needle 1 Relieve the pressure as instructed on page 7 2 Remove the air cap retainer 25 air cap 27 spray tip 28 and air separator 32 See Fig 8 3 Trigger the gun to back the fluid needle ball off the seat Remove the diffuser seat 30 and gasket 33 Install a new gasket 4 Remove the trigger 3 See the Parts Drawing page 16 5 Remove the hex nut 21 from the fluid needle 5 while holding the square part of the fluid needle 6 Pullthe fluid needle 5 and compression spring 24 from the front of the gun 7 Toremove the old packings 47 insert the pack ing t
7. ba To reduce the risk of a fluid injection injury follow the Pressure Relief Proce dure on page 7 before cleaning removing or installing a spray tip and whenever you are instructed to relieve pressure A WARNING To reduce the risk of serious injury including splashing fluid in the eyes or on the skin or static electric discharge when flushing Be sure the entire system including flushing pails are properly grounded Remove the tip guard and spray tip Maintain metal to metal contact between the gun and a grounded metal waste container See Fig 7 page 10 Use the lowest possible pressure NOTE e Flush the pump and gun before the fluid can dry in it e If itis available the flushing procedure provided in the pump or sprayer manual should be used instead of this procedure 1 Relieve the pressure as instructed on page 7 2 Disconnect the atomizing air hose and the fluid supply line 3 Remove the tip guard and spray tip Clean the parts 4 Connect a compatible solvent supply to the gun 5 Start the pump and operate it at its lowest pres sure 6 Hold a metal part of the gun firmly against a grounded metal waste container and trigger the gun until all the paint is removed from the gun passages 7 Relieve the pressure as instructed on page 7 8 Disconnect the solvent supply 307 586 11 Troubleshooting NOTE A WARNING INJECTION HAZARD To reduce the risk of a fluid injec
8. rags and gasoline Do not turn on or off any light switch in the spray area while operating or if fumes are present Do not smoke in the spray area Do not operate a gasoline engine in the spray area If there is any static sparking while using the equipment stop spraying immediately Identify and correct the problem 2 307 586 INSTRUCTIONS A WARNING EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture malfunction or start unexpectedly and result in serious injury This equipment is for professional use only Read all instruction manuals tags and labels before operating the equipment Use the equipment only for its intended purpose If you are uncertain about usage call your Graco distributor Do not alter or modify this equipment Use only genuine Graco parts and accessories Check the equipment daily Repair or replace worn or damaged parts immediately Do not exceed the maximum working pressure of the lowest rated system component This equip ment has a 950 psi 66 bar maximum working pressure at 100 psi 7 bar maximum incom ing air pressure Route the hoses away from the traffic areas sharp edges moving parts and hot surfaces Do not expose Graco hoses to temperatures above 180 F 82 C or below 40 F 40 C Do not use the hoses to pull the equipment Fluid hoses must have spring guards on both ends to protect them from rupture caused by kinks or bends near th
9. the text of this instruction manual Keep the wallet sized warning card 179 960 provided with the gun with the operator of this equipment at all times The card contains important 9 treatment information should an injection injury occur Additional cards are available at no charge from Graco Pressure Relief Procedure INJECTION HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying accidentally Fluid under high pressure can be injected through the skin and cause serious injury To reduce the risk of an injury from injection splashing fluid or moving parts follow the Pressure Relief Procedure whenever you are instructed to relieve the pressure stop spraying check or service any of the system equipment or install or clean the spray tip 1 Lockthe spray gun trigger safety to avoid acciden tally triggering the gun See Fig 2 2 Shutoff the power to the pump 3 Close the bleed type master air valve required in the system 4 Unlock the gun trigger safety 5 Hold a metal part of the gun firmly to the side of a grounded metal waste container and trigger the gun to relieve the fluid pressure Unlocked or in OFF Fig 2 Lock the gun trigger safety again Open the pump drain valve required in the sys tem to help relieve fluid pressure in the displace ment pump In addition open the drain valve connected to the fluid pressure gauge in a s
10. 20 0 508 25 8 0 8 10 12 182 520 250 300 Fluid output at 600 psi 41 bar 0 037 0 940 182 037 0 012 0 305 10 0 0 3 10 12 182 512 0 039 0 991 182 039 250 300 E AIR CAPS Tip Size Used With Air Application inches mm Consumption Part No smaller than Standard 0 025 0 635 3 5 scfm 217 3031 0 027 0 689 Standard and os 3 5 scfm smaller than Fine Finish 0 025 0 635 5 7 scfm 219 09311 smaller than High Solids 0 025 0 635 5 7 scfm 219 094 Fine Finish with Pattern smaller than Adjustment 0 025 0 635 5 7 scfm 222 507 High smaller than Atomization 0 025 0 635 5 7 scfm 222 607 High Effi ciency Low smaller than Pressure 0 025 0 635 222 608 Tt Air cap provided with spray gun tt The pattern adjustment valve must be open turned fully clockwise when using this air cap 307 586 19 Accessories Use Only Genuine Graco Parts and Accessories Four Finger Trigger 183 104 Longer than standard trigger Reduces trigger pull when spraying mastics and heavy fluids Replaces item 3 in the parts list page 1 7 Plastic Ball Tipped Fluid Needle 220 413 For fluid pressures below 500 psi 35 bar and light viscosity fluid Replaces item 5 in the parts list page 17 Ruby Ball Tipped Fluid Needle 222 497 For use with acid catalyzed finishes Replaces item 5 in the parts list page 17 Fluid Needle Compression Spring 106 452 Fo
11. INSTRUCTIONS PARTS LIST 5 307 586 9 This manual contains important GRACO a e warnings and information Supersedes M READ AND KEEP FOR REFERENCE and PCN P INSTRUCTIONS HIGH PRESSURE AIR ASSISTED AIRLESS Model AA 2000 Spray Gun 950 psi 66 bar Maximum Working Fluid Pressure 100 psi 7 bar Maximum Working Air Pressure Part Number 217 292 Series C Includes spray tip of choice U S Patent Nos 3 843 052 4 386 739 United Kingdom Patent No 2 111 406 B Patented 1984 Canada Brevete 1984 French Patent No 82 21202 Foreign Patents Pending Table of Contents Warnings 0 cece eee eee tees 2 Installation 2 o ae 4 Operatii dens dg aeter gaps ek he rcx 7 Troubleshooting 00 cee eee 12 SENICE tesi ads 14 Parts uc utes nee gu P 16 Spray Tip and Air Cap Selection Charts 18 AGGOeSSOLrI OS sha dab surreal oeil na 20 Technical Data 0 cc cece eee 21 DIMENSIONS tocas Besen Br 21 Warranty user she 24 Graco Phone Number 0000 cece eee 24 GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 COPYRIGHT 1982 GRACO INC Graco Inc is registered to I S EN ISO 9001 4 WARNING INJECTION HAZARD Spray from the gun hose leaks or ruptured components can inject fluid into your body and cause an extremely serious injury including the need for amputation Splashing fluid in the eyes or on the skin can also cause a serious injury Fluid injected into the skin mig
12. age packings and allow solvent in the air passages e Do not use metal tools to clean holes in the air cap or spray tip NOTE Clean the front of the tip frequently during the day to help reduce buildup 1 Relieve the pressure as instructed on page 7 2 Clean the outside of the gun and the tip guard with a soft cloth dampened with compatible solvent 3 To avoid damaging the spray tip and air cap clean them with a compatible solvent and soft brush To clean the air cap passages use a soft brush or other soft tool with an air blow gun 4 If using an in line filter remove and clean it thoroughly in a compatible solvent 5 Clean the system s fluid filter and air line filter 10 307 586 when the gun is sprayed without the spray tip installed such as during flush ing This reduces the risk of an injection injury Check the diffuser seat operation weekly 1 Relieve the pressure as instructed on page 7 2 Remove the tip guard and spray tip e Start the pump and operate it at its lowest pres sure 4 Hold a metal part of the gun firmly against a grounded metal waste container and trigger the gun See Fig 7 If the fluid coming from the gun is not diffused into an irregular stream replace the diffuser seat immediately AN Maintain firm metal to metal contact between the gun and a grounded metal container F i g 7 0794A Operation Flush the Gun Daily A WARNING INJECTION HAZARD
13. allation shown in Fig 1 is only a guide for selecting and installing air assisted airless spray systems It is not an actual system design Contact your Graco distributor for assistance in designing a system to meet your needs The Graco fluid pump Model 217 523 is designed for use in high pressure air assisted airless systems It has a maximum working pressure of 950 psi 66 bar See instruction manual 307 595 for information on this pump 4 307 586 Ventilate the Spray Booth A WARNING a TOXIC FLUID HAZARD To prevent hazardous concentrations of AZ toxic and or flammable vapors spray only in a properly ventilated spray booth Never operate the spray gun unless ventilation fans are operating Check and follow all of the National State and Local codes regarding air exhaust velocity require ments Installation Connect the Air Line 1 Install an air line filter A to ensure a clean dry air supply to the gun Dirt and moisture in the line can ruin the appearance of your finished piece See Fig 1 2 Install an air pressure regulator L on the gun air supply line to control the air pressure to the gun 3 Install an air pressure regulator D on the pump air supply line to control air pressure to the pump 4 Install a bleed type air shutoff valve C on the main air line and on the pump air line downstream of the pump air regulator to shut off air to the pump Install an additional bleed typ
14. ase the air pressure to the gun slightly or use a different size tip NOTE For some spray tips when the line air pressure to the gun is increased to a certain level the spray pattern will become round This is the smallest pattern width Further increases in air pressure will force the pattern to turn from horizontal to vertical or from verti cal to horizontal Apply the Fluid When applying the fluid keep the gun a consistent distance 8 to 10 inches 200 to 250 mm from the surface of the object being sprayed Always hold the gun at a right angle from the surface Do not make an arc with the gun as it causes an uneven coat of fluid See Fig 6 Da Pattern Fig 4 No Air Too Little Air Fig 5 Fig 6 Adjustment Knob Right Amount of Air 0792 0793A 307 586 9 Operation Check the Diffuser seat Operation Weekly A WARNING INJECTION HAZARD by The gun diffuser seat breaks up spray Clean the Spray Gun and System Daily A WARNING INJECTION HAZARD Ur To reduce the risk of an injection injury or splashing fluid in the eyes or on the skin e Follow the Pressure Relief Procedure on page 7 before cleaning removing or installing a spray tip and whenever you are instructed to relieve pressure Do not wipe fluid buildup off the gun or spray tip until pressure is relieved 44 CAUTION To avoid damaging the gun e Never immerse the gun in solvent as this could dam
15. available on special work order Allow 4 350 400 182 719 to 6 weeks for delivery 200 250 182 421 250 300 y 182 521 300 350 182 621 350 400 182 721 400 460 182 821 200 250 182 423 250 300 i 182 523 300 350 182 623 350 400 182 723 400 460 182 823 200 250 182 425 182 525 300 350 182 625 350 400 182 725 400 460 182 825 18 307 586 Spray Tip and Air Cap Selection Charts SOLID STREAM SPRAY TIPS FINE FINISH SPRAY TIPS For use in applications requiring a solid stream of fluid such For use in application of certain urethanes clearcoats and as with mastics or sealers All these tips require Air Cap light weight air dry enamels All these tips require replace 218 336 ment of standard diffuser seat with Diffuser seat part no 223 139 an Size iur Light Viscosity Fan Width at Fine Finish inches mm Orifice Size floz min 12 300 mm Spray Tip 0 027 0 689 182 027 Solid stream inches mm liters min inches mm Part No approximatel 0 029 0 737 182 029 035 6 35 mm 0 012 0 305 10 0 0 3 6 8 182 312 182 031 152 203 0 031 0 787 182 033 0 014 0 356 13 6 0 4 6 8 182 314 182 035 152 203 0 033 0 838 0 035 0 889 0 041 0 043 1 092 0 045 1 143 0 047 1 194 1 041 182 041 0 014 0 356 13 6 0 4 10 12 182 514 182 043 250 900 182 045 0 016 0 406 17 0 0 5 10 12 182 516 182 047 250 300 0 018 0 457 20 9 0 6 10 12 182 518 250 300 0 0
16. d pressure in the displacement pump hose and gun See Fig 1 2 Install a fluid pressure regulator Q to control fluid pressure to the gun NOTE Some applications require fine tuned control of fluid pressure You can control fluid pressure more accurately with a fluid pressure regulator than by regulating the air pressure to the pump 3 Install a fluid shutoff valve F to shut off the fluid supply to the gun 4 Install fluid drain valve s E close to the pump s fluid outlet NOTE The gun fluid fitting W has a 1 4 18 npsm R1 4 19 compound male thread that is compatible with NPSM and BSP female connectors 5 Install an in line fluid filter N on the gun fluid fitting W to avoid clogging the spray tip with particles from the fluid 6 Connect the grounded fluid hose H to the gun fluid fitting W or optional in line filter N 307 586 5 Installation Ground the System A WARNING FIRE AND EXPLOSION HAZARD Improper grounding could cause static sparking which could cause a fire or explosion To reduce the risk of property damage or serious injury follow the grounding instructions below The following grounding instructions are minimum requirements for a system Your system may include other equipment or objects which must be grounded Check your local electrical code for detailed grounding instructions for your area and type of equipment Your system must be connected to a true earth ground
17. e couplings Use fluids or solvents that are compatible with the equipment wetted parts See the Technical Data section of all the equipment manuals Read the fluid and solvent manufacturer s warnings Wear hearing protection when operating this equipment Comply with all applicable local state and national fire electrical and other safety regulations TOXIC FLUID HAZARD Hazardous fluids or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin swallowed or inhaled Know the specific hazards of the fluid you are using Read the fluid manufacturer s warnings Store hazardous fluid in an approved container Dispose of hazardous fluid according to all local state and national guidelines Wear the appropriate protective clothing gloves eyewear and respirator 307 586 3 Installation KEY Air Line Filter Air Line Lubricator Bleed type Master Air Valve Pump Air Regulator Fluid Drain Valve Fluid Shutoff Valve Fluid Filter Grounded Fluid Hose Pump Air Line Air Pressure Regulator Pump Fluid Inlet In line Fluid Filter Pattern Adjustment Valve Knob Fluid Pressure Regulator Pressure Gauge Trigger Safety Pump Runaway Valve Ground Wire Gun Fluid Connector X Air Shutoff Valve monu gt O TVTZZTA ION x lt 40 Equipment required for safe operation of the system Must be purchased separately Fig 1 Typical Installation The typical inst
18. e valve on each pump air supply line to relieve air trapped between this valve and the pump after the air regulator is shut off A WARNING The bleed type air shutoff valve is required in your system to relieve air trapped between this valve and the pump after the air regulator is closed Trapped air can cause the pump to cycle unexpect edly which could result in serious injury NOTE The gun air inlet has a 1 4 18 npsm R1 4 19 compound male thread that is compatible with NPSM and BSP female swivel connectors 5 Install an air shutoff valve X on each gun air supply line downstream of the gun air regulator to shut off air to the gun s 6 Connect the air hose K from the air supply to the gun air inlet Connect the Fluid Line A WARNING INJECTION HAZARD To reduce the risk of property damage or serious injury including fluid injection which could be caused by component rupture or unrelieved fluid pressure A fluid drain valve s E is required in your system to assist in relieving fluid pressure in the displacement pump hose and gun triggering the gun to relieve pressure may not be suffi cient A fluid pressure regulator Q must be installed in the system if the pump s maximum working pressure exceeds the gun s maximum fluid working pressure of 950 psi 66 bar 1 Install a fluid filter G and drain valve s E close to the pump s fluid outlet The drain valve assists in relieving flui
19. gger is released the fluid stops before the air flow stops This helps assure the spray is atomized and prevents fluid buildup on the air cap Select a Spray Tip and Air Cap The fluid output and pattern width depend on the size of the spray tip the fluid viscosity and the fluid pres sure Use the Spray Tip and Air Cap Selection Charts on pages 18 and 19 as a guide for selecting an appropriate spray tip and air cap for your applica tion NOTE e Using a Fine Finish Spray Tip may improve the finish of certain urethanes clearcoats or light weight air dry enamels Refer to the Fine Finish Spray Tip Selection Chart on page 19 e f you are applying a solid stream of fluid such as mastics or sealants refer to the Solid Stream Spray Tip Selection Chart on page 19 8 307 586 e When spraying at fluid pressures below 500 psi 35 bar or spraying light viscosity fluids use optional fluid needle 220 413 see page 20 The standard needle may not provide positive shut off at those pressures or for such fluids e When spraying acid catalyzed varnishes use optional fluid needle 222 497 see page 20 Using a standard needle may decrease needle life and leakage may occur Install a Spray Tip A WARNING INJECTION HAZARD To reduce the risk of a fluid injection injury follow the Pressure Relief Proce dure on page 7 before removing or installing a spray tip Install a spray tip in the gun The air cap and spray
20. ht look like just a cut but it is a serious injury Get immediate medi cal attention Do not point the spray gun at anyone or at any part of the body Do not put hand or fingers over the spray tip Do not stop or deflect fluid leaks with your hand body glove or rag Do not blow back fluid this is not an air spray gun Check the gun diffuser operation weekly Be sure the gun trigger safety operates before spraying Lock the gun trigger safety when you stop spraying Follow the Pressure Relief Procedure on page 7 whenever you are instructed to relieve pres sure stop spraying clean check or service the equipment or install or clean the spray tip Tighten all the fluid connections before operating the equipment Check the hoses tubes and couplings daily Replace worn damaged or loose parts immediately Permanently coupled hoses cannot be repaired replace the entire hose FIRE AND EXPLOSION HAZARD Improper grounding poor air ventilation open flames or sparks can cause a hazardous condition and result in fire or explosion and serious injury Ground the equipment and the object being sprayed See Ground the System on page 6 Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being sprayed Extinguish all the open flames or pilot lights in the spray area Electrically disconnect all the equipment in the spray area Keep the spray area free of debris including solvent
21. ification of the claim If the claimed defect is verified Graco will repair or replace free of charge any defective parts The equipment will be returned to the original purchaser transportation prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation DISCLAIMERS AND LIMITATIONS The terms of this warranty constitute purchaser s sole and exclusive remedy and are in lieu of any other warranties express or implied including warranty of merchantability or warranty of fitness for a particular purpose and of any non contractual liabilities including product liabilities based on negligence or strict liability Every form of liability for direct special or consequen tial damages or loss is expressly excluded and denied In no case shall Graco s liability exceed the amount of the purchase price Any action for breach of warranty must be brought within two 2 years of the date of sale EQUIPMENT NOT COVERED BY GRACO WARRANTY Graco makes no warranty and disclaims all implied warranties of merchantability and fitness for a particular purpose with respect to accessories equipment materials or components sold but not manufactured by Graco These items sold but not manufactured by Graco such as electric motor switches hose etc are subject to the warranty if any of their manufacturer Graco w
22. ill provide purchaser with reasonable assistance in making any claim for breach of these warranties Graco Phone Manual Change Number Summary 1 Added do and do not lubricate notes to Service TO PLACE AN ORDER contact your Graco distribu section drawing tor or call this number to identify the distributor closest to you 1 800 367 4023 Toll Free 2 Added Repair Kit 238 224 Sales Offices Atlanta Chicago Detroit Los Angeles Foreign Offices Belgium Canada England Korea Switzerland France Germany Hong Kong Japan GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 PRINTED IN U S A 307 586 October 1992 Revised December 1995 24 307 586
23. o threads Torque to 15 19 ft lb 20 26 Nem ppp gt Do not lubricate 307 586 15 Parts SERVICE NOTES See Fig 8 for additional information Lubricate threads Torque to 23 27 ft lb 31 37 Nem Diffuser seat gasket 33 must be replaced if diffuser seat 30 is removed or replaced to avoid fluid leakage Fluid fitting gasket 33 must be replaced if fluid fitting 67 is removed or replaced to avoid fluid leakage pepeppme Torque to 10 14 ft lb 14 19 Nem For Direct Hose Connection Parts shipped unassembled 16 307 586 Ref No 10 11 18 19 20 21 24 25 26 27 28 30 32 Parts Use Only Genuine Graco Parts and Accessories PartNo Description Qty 178 415 CONNECTOR fluid not assembled 106 917 ADAPTER air 178 454 TRIGGER gun 217 488 NEEDLE fluid Optional Plastic Ball Tipped Needle available see page 20 217 489 VALVE pattern adjustment Includes items 62 amp 63 106 903 SPRING compression air valve 178 408 CAP valve air 203 953 CAP SCREW hex head 10 24 x 0 375 long 160 217 PIN pivot 217 516 BODY gun 177 528 NUT hex 109 022 SPRING compression fluid Optional Spring available See page 20 217 526 RETAINER air cap 107 079 O RING PTFE 217 303 AIR CAP 182 XXX SPRAY TIP Customer s choice See Chart on page 18 217 300 DIFFUSER SEAT 178 414 SEPARATOR air ek Ref No 33 47 49 51 52 55 62 63 64A 67
24. ool 55 into the front of the gun and screw it into the packings Pull the packings from the front of the gun 8 Clean the parts with a compatible solvent and a soft brush Inspect the fluid needle 5 for wear or damage and replace it if necessary 9 Insert the new packings 47 onto the fluid needle b shaft as shown in Detail D of Fig 8 10 Install the fluid needle 5 Do not damage the packings 11 Screw the hex nut 21 all the way onto the fluid needle 5 Do not over tighten it 12 Install the trigger 13 Trigger the gun while screwing the diffuser seat 80 back into the gun Torque the diffuser seat to 23 to 27 ft lbs 31 to 37 Nem 14 Install the air separator 32 spray tip 28 air cap 27 and air cap retainer 25 Service 11 N A N x A Mo fe if DETAIL D d A f 33 A QT d Y FLUID 67 A REA o f gt V 2 DETAIL D PE WAS AIR SSH Fluid Needle Packings 47 SERVICE NOTES AN Diffuser seat gasket 33 must be replaced if diffuser seat 30 is removed or replaced to avoid fluid leakage Lubricate with light weight oil cup lips face inward Fluid fitting gasket 33 must be replaced if fluid fitting 67 is SSU BS dos wal removed or replaced to avoid fluid leakage Torque to 23 27 ft lb 31 37 Nem Lubricate threads Torque to 20 24 ft lb 27 32 Nem gt pp pl Apply anaerobic pipe sealant to threads Apply high strength sealant t
25. r spraying higher solids or heavier viscosity fluids Replaces item 24 in the parts list page 17 Ultra High Molecular Weight Polyethylene Needle Packing Kit 221 150 Use to replace needle packings item 47 in the parts list page 17 when spraying urethane fluids Helps eliminate isocyanate crystallization in packing area Grounding Clamp and Wire 222 011 12 ga 25 ft 7 6 m wire Cc 20 307 586 Brush 101 892 For cleaning the gun High Pressure Ball Valves Viton Seals 5000 psi 350 bar Maximum Working Pressure Can be used as fluid drain valve 210 657 1 2 npt m 210 658 3 8 npt m 210 659 3 8 x 1 4 npt m In line Fluid Filter 210 500 5000 psi 350 bar Maximum Working Pressure 100 mesh Fits onto the gun s fluid connector 1 4 18 npsm 7 SM Filter Fa 205 264 eS 164 075 Bleed type Master Air Valve 300 psi 21 bar Maximum Working Pressure Relieves air trapped in the air line between the pump air inlet and this valve when closed 107 141 3 4 npt m x f inlet amp outlet lt gt 107 142 1 2 npt m x f inlet amp outlet SEY Dimensions 1 4 18 npsm R1 4 19 Compound Thread Technical Data Maximum Working Fluid Pressure 950 psi 66 bar Maximum Working Air Pressure 100 psi 7 bar Maximum Working Fluid Temperature 120 F 49 C Weight less filter 1 2 Ib 0 55 Kg Wetted Parts Stainless Steel Carbide Ultra High Molecular Weight Polyethyl
26. tion injury follow the Pressure Relief Proce dure on page 7 before checking or Check all possible remedies in the troubleshooting charts before disassembling the gun e Some improper patterns are caused by the improper balance between air and fluid La servicing any of the system equipment and when ever you are instructed to relieve pressure General Troubleshooting Problem Fluid leakage from back of fluid needle Cause Worn packings 47 or needle 5 shaft Solution Replace packings or needle See page 14 Air leakage from front of gun Air valve 52 not seating properly Clean service air valve See page 14 Fluid leakage from front of gun Fluid needle 5 worn or damaged Worn diffuser seat 30 housing Replace fluid needle See page 14 Replace the diffuser seat and gasket 33 The gasket must be replaced whenever the diffuser seat is re moved See page 14 Fluid in air passages Fluid tip 28 seal leaking Leaking around diffuser seat 30 housing Fluid inlet fitting 67 leaking Tighten or replace fluid tip Replace the diffuser seat gasket 33 The gasket must be replaced when ever the diffuser seat is removed See page 14 Replace the fluid fitting gasket 33 The gasket must be replaced when ever the fluid fitting is removed See page 15 Spray Pattern Troubleshooting Problem Fluttering or spitting spray i Insufficient fluid supply
27. tip position determines the direction of the spray pattern Rotate the air cap the spray tip rotates with it as needed for the desired spray pattern direction See Fig 3 Vertical Spray Pattern Horizontal Spray Pattern Operation Adjust the Spray Pattern A WARNING INJECTION HAZARD To reduce the risk of component rupture and serious injury including injection do not exceed the gun s maximum fluid working pressure of 950 psi 66 bar or the maxi mum working pressure of the lowest rated compo nent in the system NOTE Optional gun parts are available for special applications See page 20 1 Set the fluid pressure at 300 psi 21 bar with the fluid regulator 2 Trigger the gun to check the atomization do not be concerned about the pattern shape yet 3 Increase the fluid pressure just to the point where a further increase in fluid pressure does not signifi cantly improve fluid atomization 4 Close the pattern adjustment valve by turning the knob see Fig 4 counterclockwise all the way This sets the gun for its widest pattern 5 Set the atomizing air pressure at about 20 psi 1 4 bar Check the spray pattern then adjust the air pressure until the tails are completely atomized and pulled into the spray pattern See Fig 5 Do not exceed 100 psi 7 bar air pressure to the gun For a narrower pattern turn the pattern adjustment valve knob clockwise If the pattern is still not narrow enough incre
28. ystem with fluid regulation to help relieve fluid pressure in the hose and gun Triggering the gun to relieve pressure may not be sufficient Have a container ready to catch the drainage Leave the drain valve s open until you are ready to spray again If you suspect that the spray tip or hose is com pletely clogged or that pressure has not been fully relieved after following the steps above very slowly loosen the hose end coupling and relieve pressure gradually then loosen the coupling completely Now clear the tip or hose obstruction Trigger Safety SAFE Position Trigger Safety Locked or in ON SAFE Position 307 586 7 Operation How the Air Assisted Airless Spray Gun Operates The air assisted airless spray gun combines airless and air spraying concepts The spray tip shapes the fluid into a fan pattern as does a conventional airless spray tip Air from the air cap further atomizes the fluid and completes the atomization of the paint tails into the pattern to produce a more uniform pattern The pattern adjustment valve controls the width of the pattern Note that the air assisted airless spray gun differs from an air spray gun in that increasing the pattern air reduces the pattern width To increase the pattern width less pattern air or a larger size tip must be used The spray gun has a built in lead and lag operation When triggered the gun begins emitting air before the fluid is discharged When the tri
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